Fuel-injecting device for combustion-engines.



G. ABRAHAMSON.

FUEL INJECTING DEVICE FOR COMBUSTION ENGINES.

Patented Apr, 22,1919.

Ihvaniur: B4512: nhumamn.

.Att 0 rum '9 or'ricn GUSTAF ABRAHAMSON, 0F HILLEVAAG, PR. STAVANQEB,NORWAY.

FUEL-INJECTING DEVICE FOR COMBUSIIOli-ENGINES.

Specification of Letters Patent.

' Application filed January 22, 1919. Serial No. 272,496.

To all whom it may concern Be it known that I, GUSTAF ABRAHAMSON,manufacturer, citizen of Norway, residing at Hilleva'ag, pr. Stavanger,Norway, have in vented certain new and useful Inprovements in Fuel-Injecting Devices for ombustion- Engines, of which the following is aspecifioatlon.

The present invention relates to improvementsin fuel injecting devicesfor internal combustion engines and is particularly directed to fuelinjectors of the type in which the nozzle, through which the fuel isinjected into the cylinder of the engine, is arranged on a revolvingsupport, so that. the direction, in which the fuel is injected to thecylinder, may be varied and through which the ignition point may beregulated after loading' a One of the objects of my invention is toconnect the fuel tube and the nozzle support in such manner that saidsupport may be revolved without turning the fuel tube.

A further object of the invention is to provide resilientl pressed meansfor preventing leakage and with other objects in view, the inventionconsists in the novel features hereinafter described, illustrated in theaccompanying drawing and more particularly pointed out in the appendedclaims. 7 1 a In the accompanying drawing Iflhave shown a longitudinalsectional View of the at its forward end with a head carrying a nozzle 4arranged at an angle to the axis of the support bore. Located at therear end of the nozzle support is a fuel tube 3, which has threads forconnecting the same to a fuel supply pipe not shown). The tube 3 isprovided with a hollow extension 3, which projects into the bore of thesupport 2 and. a

etween the parts of the fuel injecting device. y

With the foregoing objects pointed out shoulder 10 is provided at therear end of the extension 3. An apertured cap 5 is passed over the tube3, engages the shoulder 10 and is screwed upon the threaded exterior ofthe rear end of the support 2.

A collar 6 is fixed by. a key 9 to the support 2 and bears against therear endof the hollow plug 1' and a handle 8 is rigid with the collar 6.A spring 7 surrounds the support 2 and bears against the cam 5 andcollar 6 and tends to press the collar toward the plug 1 and to draw thenozzle toward the forward end of the plug 1.

From the foregoing it will be seen that the support 2, nozzle 4, cap 5,collar 6 and handle 8 may be rotated without rotating the plug 1 andfuel tube 3, and that the spring 7 will prevent the parts from leakageduring rotation. It will also be seen that by extending the part 3 intothe bore of the nozzle support 2, the liability of the fuel tube 3 beingtilted out of alinement with the nozzle support 2 will be prevented andconsequently.

the present construction will obviate the liability of leakage betweenthe nozzle support and fuel tube.

What I claim and desire to secure by LettersPate'nt is:

, 1. The combination with a hollow plug, of

nozzle support, a coilar fixed to said sup-port and bearmg against saidplug, and a spring arranged between the cap and collar.

2. The combination with a hollow plug threaded for attachment to anengine cylinder, of a tubular nozzle support rotatably mounted in saidplug and having a head at its front end which bears against the frontend of said plug, a nozzle carried by said head and extending at anangle to the axis of the. nozzle support, said support extending Intestimony whereof I aflix my signature entirely through sand p-1ug,efuel tube havin the presence of'two witnesses. ing an extension prqectmginto the bore of GUSTAF ABRAHAMSON said suppbrt and having a eollal'bearing 7.

against the rear end of the support, and a Witnesses:

cap surroundingsaid tube, bearing against IVAR OHM,

said shoulder, andsecur'ed to said support. HARTVIG HALVORSAN.

